Photometric monitoring of Luminous Blue Variables

Carla Buemi; Elisa Distefano; Paolo Leto; Francesco Schillirò; Corrado Trigilio; Grazia Umana; Stefano Bernabei; Giuseppe Cutispoto; Sergio Messina

Bulletin de la Société Royale des Sciences de Liège

0037-9565 1783-5720

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Carla Buemi, Elisa Distefano, Paolo Leto, Francesco Schillirò, Corrado Trigilio, Grazia Umana, Stefano Bernabei, Giuseppe Cutispoto & Sergio Messina

Photometric monitoring of Luminous Blue Variables

(Volume 80 - Année 2011)

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Abstract

We present some preliminary results from our program of intensive near-infrared photometric monitoring of a sample of confirmed and candidate Luminous Blue Variables (LBVs) conducted from 2008 to 2010.

Clear long-term variability has been observed for Wray 17-96 and V481 Sct, with overall brightness variation greater than 1 mag in the J band. Other sources, such as LBV 1806-20 showed detectable variability with amplitudes of few tenths of a magnitude with a time-scale of about 60 days.

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Carla Buemi, Elisa Distefano, Paolo Leto, Francesco Schillirò, Corrado Trigilio, Grazia Umana, Stefano Bernabei, Giuseppe Cutispoto & Sergio Messina, «Photometric monitoring of Luminous Blue Variables», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 80 - Année 2011, 351 - 355 URL : http://popups.ulg.be/0037-9565/index.php?id=2811.